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Faurecia kunststoffe automobil

A spring fork and spring device technology, applied in the field of spring fork, can solve the problems of unpleasant, ineffective driving position, bad seat, etc., and achieve the effect of strong damping effect

Inactive Publication Date: 2009-02-18
GUSTAV MAGENWIRTH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the result of this is that the spring fork itself continues to rise gradually during a small movement, so that in this case there is an unpleasant and ineffective driving position and a change, especially when driving uphill. bad seat

Method used

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  • Faurecia kunststoffe automobil
  • Faurecia kunststoffe automobil
  • Faurecia kunststoffe automobil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] 1 to 3 show damping structures 1 to 1 b which have a single-piston damper with a piston 3 guided in a cylinder 2 . The black arrow PF1 marks the movement or oil flow of the stretching process (traction phase), while the white arrow PF2 marks the movement or oil flow of the hydraulic oil 21 during the compression process (compression phase).

[0027] Connected to the cylinder 2 is a hydraulic circuit 4 which, in FIG. 1 , has a traction-phase damping device 5 , a compression-phase damping device 6 and a blocking device 7 connected in series to the compression-phase damping device 6 . The traction phase damping device 5 and the compression phase damping device 6 respectively comprise a check valve 8 and a throttle valve 9, wherein the throttle valve 9 of the traction phase damping device 5 is configured to be adjustable. The damping device 6 in the compression stage can also be adjustable as required.

[0028] Connected in series to the compression phase damping device 6 ...

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PUM

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Abstract

A spring fork, in particular for bicycles, with a suspension system and a hydraulic damping system, wherein a compression stage damping system (6) is provided for a spring deflection process and a traction stage damping system (5) is provided for a rebound process. Furthermore, at least one piston (3, 16, 27) is provided, which is located in the cylinder (2), and at least one connecting passage (17, 17a) is provided, which connects the cylinder spaces located on both sides of the piston and is intended for the overflow of hydraulic medium (21). The compression stage damping system (6) which is activated during the spring deflection process can be blocked by closing the connecting passage (lockout). At least with the compression stage damping system (6) blocked, if appropriate also with the traction stage damping system (5) also blocked, a bypass passage (11, 20, 20a) which has a reduced cross section in comparison to the connecting passage (17, 17a) is opened. As a result, the strong damping effect is largely maintained, in particular during the rocking peddling action, but, on the other hand, automatic return of the fork into its initial position (sag position) is made possible.

Description

technical field [0001] The invention relates to a spring fork especially for bicycles, comprising a spring device and a hydraulic damping device, wherein a compression phase damping device is provided for the compression process and a traction phase damping device is provided for the stretching process; The piston and at least one connecting channel connecting the cylinder chambers located on both sides of the piston are used for the overflow of hydraulic medium, wherein the compression phase damping device active during compression can be blocked (blocked) by closing the connecting channel. Background technique [0002] The so-called block adjustment produces an extremely high damping effect and is thus intended to prevent a strong insertion of the frame and pivoting of the spring fork during jolts, especially at the onset of inclines. [0003] For this purpose, the compression phase damping device is blocked, so that no compression is actually possible. However, the resul...

Claims

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Application Information

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IPC IPC(8): B62K25/08F16F9/46
CPCF16F9/467B62K25/08F16F9/56
Inventor R·金斯特勒D·吕德
Owner GUSTAV MAGENWIRTH